# SDR QR9R2025102100001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 21, 2025
- Submitted: October 21, 2025
- Operation: General aviation
- Filed by: [M1 Support Services, repair station QR9R369D](https://openairdocs.org/faa-repair-station/QR9R369D/m1-support-services.md) (OpenAirDocs)
- Make and model: Bolkms BK117C2
- Aircraft serial: 9727
- Aircraft time: 4,719 hours
- System (JASC): [7100 · Powerplant System](https://openairdocs.org/jasc/7100)
- Part: Module
- Part number: 70BM053110
- Part serial: 21471
- Condition: Damaged
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QR9R2025102100001

## Discrepancy

THE MOD 05 ASSEMBLY WAS RECEIVED FROM SUPPLY UNSERVICEABLE DUE TO DAMAGED DOWEL PIN.

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